info@hfh.ee

Services

Hydraulic Pumps & Motors

Hydraulic Pump Repair & Replacement

Capabilities

Our specialized workshop at Volta 5, Tallinn is equipped to repair and rebuild virtually all types of maritime hydraulic pumps, including:

  • Variable displacement piston pumps
  • Fixed displacement gear pumps
  • Vane pumps
  • Axial and radial piston designs
  • High-pressure maritime-grade pumps

Our repair process includes:

  • Comprehensive performance testing and diagnostics
  • Complete disassembly and inspection
  • Precision measurement of all components
  • Replacement of all wear items regardless of visible condition
  • Surface restoration of critical components
  • Reassembly in clean-room conditions
  • Post-repair performance testing under load

Benefits

  • 40-60% cost savings compared to new pump replacement
  • Fast turnaround time with most repairs completed in 2-3 days
  • Extended service life often exceeding original specifications
  • Comprehensive warranty coverage on all repairs
  • Performance documentation for classification society requirements

Applications

  • Steering systems
  • Deck equipment hydraulics
  • Propulsion control systems
  • Cargo handling systems
  • Stabilizer systems
  • Bow Thruster controls

Request Hydraulic Pump Repair Quote

Hydraulic Motor Maintenance

Technical Specifications

Our hydraulic motor maintenance and repair services cover:

  • Radial piston motors
  • Axial piston motors
  • Gerotor and orbit motors
  • High-torque, low-speed winch motors
  • Specialized marine application motors

Our comprehensive maintenance includes:

  • Flow and pressure testing at rated load
  • Torque efficiency measurement
  • Full disassembly and internal inspection
  • Replacement of all seals and bearings
  • Valve plate resurfacing when required
  • Cylinder block and piston inspection
  • Case drain monitoring and analysis

Performance Benefits

  • Restored efficiency to within 5% of factory specifications
  • Elimination of internal and external leakage
  • Reduced heat generation during operation
  • Smoother operation with less vibration
  • Extended service life with proper maintenance intervals
  • Detailed performance documentation

Marine Applications

  • Winch drive systems
  • Propulsion controls
  • Stabilizer systems
  • Thruster controls
  • Crane rotation drives
  • Hatch cover systems

Schedule Motor Performance Analysis

Cylinders & Actuators

Hydraulic Cylinder Repair

Key Capabilities

Our cylinder repair service includes:

  • Complete cylinder disassembly and inspection
  • Rod straightness testing to 0.01mm tolerance
  • Chrome rod surface restoration or replacement
  • Cylinder tube honing and surface refinishing
  • Seal replacement with marine-grade components
  • Complete cylinder pressure testing
  • Gland design improvements when applicable
  • Custom seal configurations for challenging environments

Benefits

  • Typical cost savings of 50-70% compared to new cylinder replacement
  • Rapid turnaround for common maritime cylinder designs
  • Improved sealing performance in marine environments
  • Extended service life through quality materials and precision workmanship
  • Custom modifications to address recurring issues
  • Root cause analysis to prevent future failures


Marine Applications

  • Steering cylinders
  • Ramp and door actuators
  • Stabilizer systems
  • Winch tensioning cylinders
  • Crane boom actuators
  • Hatch cover systems

Request Cylinder Repair Assessment

Custom Cylinder Fabrication

Design Capabilities

For applications where standard cylinders are unsuitable, we offer custom cylinder design and fabrication:

  • Full engineering design service
  • Custom mounting configuration design
  • Integration with existing hydraulic systems
  • Special materials for corrosive environments
  • High-pressure designs up to 350 bar
  • Long-stroke stability optimization

Material Specifications

  • Marine-grade stainless steel cylinder tubes
  • Nitride-hardened piston rods
  • Hard chrome or Ceramic-coated rod options
  • Specialized sealing systems for saltwater exposure
  • Composite bearings for reduced maintenance
  • Corrosion-resistant external components

Application Benefits

  • Precise dimensional matching to application requirements
  • Improved corrosion resistance in maritime environments
  • Enhanced sealing in challenging conditions
  • Reduced maintenance frequenc
  • Integration of feedback sensors when required
  • Optimized performance for specific duty cycles

Discuss Custom Cylinder Requirements

Control Valves & Blocks

Hydraulic Valve Repair and Testing

Technical Restoration Process

Our valve repair service addresses the most common issues in maritime hydraulic valves:

  • Comprehensive flow and pressure testing
  • Spool and sleeve measurement and evaluation
  • Lapping of sealing surfaces
  • Replacement of all seals and O-rings
  • Solenoid testing and replacement when needed
  • Spring tension verification
  • Complete valve body cleaning and de-contamination
  • Post-repair performance verification

Performance Benefits

  • Elimination of internal leakage
  • Restored pressure regulation accuracy
  • Proper shifting timing and response
  • Reduced heat generation
  • Elimination of erratic behavior
  • Extended service life
  • Detailed performance documentation

Marine Applications

  • Directional control valves
  • Pressure control valves
  • Flow control and proportional valves
  • Sequence and counterbalance valves
  • Cartridge valve systems
  • Integrated hydraulic manifolds

Submit Valve Repair Inquiry

Custom Valve Block Manufacturing

Engineering Capabilities

For complex hydraulic systems / if space is limited, we offer custom valve block design & manufacturing:

  • 3D CAD design of integrated hydraulic manifolds
  • Hydraulic circuit optimization
  • CNC machining of aluminum and steel blocks
  • Integration of multiple valve functions
  • Pressure and flow testing of completed assemblies
  • Complete documentation including detailed schematics

System Integration Benefits

  • Reduced plumbing connections minimizing leak points
  • Compact design for space-constrained applications
  • Weight reduction compared to conventional plumbed systems
  • Improved system response and efficienc
  • Easier maintenance and troubleshooting
  • Less vulnerability to external damage
  • Cleaner installation appearance

Marine Applications

  • Steering system control manifolds
  • Winch control systems
  • Multiple-function deck equipment controls
  • Integrated thruster control systems
  • Custom machinery hydraulic controls
  • Redundant system integration

Discuss Custom Valve Block Requirements

Winches & Deck Equipment

Hydraulic Winch Repair and Modernization

Overhaul Process

Our comprehensive winch overhaul service includes:

  • Complete disassembly and inspection
  • Hydraulic motor rebuilding or replacement
  • Brake system overhaul
  • Control valve rebuilding or upgrading
  • Planetary gearbox inspection and repair
  • Structural integrity assessment
  • Seal and bearing replacement
  • Corrosion treatment and prevention
  • Control system upgrading or modernization
  • Complete system pressure and function testing

Performance Enhancements

  • Improved lifting capacity through hydraulic optimization
  • Reduced energy consumption with efficient components
  • Enhanced control precision for sensitive operations
  • Increased reliability in harsh maritime conditions
  • Extended service life through quality component
  • Updated compliance with current safety standards
  • Optional load monitoring and overload protection

Marine Applications

  • Anchor windlasses
  • Mooring winches
  • Towing winches
  • Cargo handling winches
  • Special purpose equipment
  • Fishing vessel deck equipment

Request Winch Evaluation

Hydraulic Deck Equipment Service

Maintenance Capabilities

Our deck equipment service program covers:

  • Scheduled maintenance programs
  • Urgent repairs during business hours
  • Performance optimization
  • Control system modernization
  • Hydraulic line replacement
  • System flushing and fluid renewal
  • Corrosion protection renewal
  • Safety system verification
  • Operational testing under load
  • Documentation for classification requirements

Environmental Benefits

  • Leak prevention reducing marine pollution risk
  • Improved energy efficiency reducing emissions
  • Environmentally acceptable hydraulic fluids
  • Noise reduction through component optimization
  • Extended equipment life reducing resource consumption
  • Proper fluid disposal and recycling

Marine Applications

  • Cargo cranes
  • Provision cranes
  • Hatch cover systems
  • Ramp systems
  • Specialized cargo handling equipment
  • Offshore equipment

Schedule Deck Equipment Inspection

Steering Systems

Complete Steering System Repair

Diagnostic and Repair Process

Our steering system specialists provide:

  • Comprehensive system diagnostics
  • Telemotor repair and calibration
  • Power unit rebuilding Actuating
  • Cylinder repair or replacement
  • Control valve overhaul
  • Rudder stock connection inspection
  • Feedback mechanism calibration
  • Emergency steering system verification
  • Complete system pressure and functional testing

Safety Benefits

  • Reliable steering operation in all conditions
  • Elimination of unexpected failures
  • Proper emergency system operation
  • Compliance with classification society requirements
  • Detailed documentation of safety-critical components
  • Manufacturer-specified parts and procedures
  • Extended service intervals with confidence

Vessel Applications

  • Passenger vessels
  • Cargo vessels
  • Tankers
  • Offshore support vessels
  • Tugboats
  • High-speed craft

Request Steering System Assessment

Steering System Modernization

Upgrade Capabilities

For older vessels or those seeking improved performance, we offer:

  • Hydraulic power unit modernization
  • Control system electronic upgrades
  • Pump efficiency improvements
  • Actuator rebuilding or replacement
  • Valve block modernization
  • System monitoring additions
  • Integration with modern autopilot systems
  • Enhanced redundancy implementation
  • Full system re-commissioning and testing

Performance Improvements

  • Reduced rudder response time
  • Lower power consumption
  • Improved reliability in challenging conditions
  • Better course-keeping precision
  • Enhanced system monitoring capabilities
  • Reduced maintenance requirements
  • Extended component life through modern designs

Regulatory Compliance

  • Updated systems meeting current class requirements
  • Documented testing and certification
  • Compliance with international standards
  • Proper redundancy for vessel classification
  • Modern safety features integration
  • Emergency operation verification

Explore Steering Modernization Options

Fluid Management & Filtration

Hydraulic Fluid Analysis & Management

Testing Capabilities

Our fluid management program includes:

  • ISO cleanliness code verification
  • Water content measurement
  • Acid number determination
  • Particle counting and analysis
  • Viscosity testing
  • Additive depletion analysis
  • Wear metal analysis
  • Varnish potential testing
  • Detailed trend analysis with historical tracking

System Longevity Benefits

  • Up to 3x extended component life through contamination control
  • Early detection of system wear preventing major failures
  • Optimal fluid performance maintaining system efficiency
  • Reduced energy consumption through proper fluid maintenance
  • Minimized unplanned downtime through predictive analysis
  • Extended fluid change intervals when conditions permit
  • Detailed documentation for maintenance planning

Application Scenarios

  • Critical steering systems
  • High-pressure hydraulic systems
  • Continuously operating equipment
  • Weather-exposed hydraulic systems
  • Aging hydraulic installations
  • Recently repaired or modified systems

Schedule Fluid Analysis Program

Filtration System Upgrades

Design Capabilities

Our filtration experts can enhance your existing hydraulic systems with:

  • Modern filtration technology integration
  • Offline filtration system design
  • Kidney-loop cleaning systems
  • Water removal solutions
  • Custom filter mounting design
  • High-capacity filter upgrade
  • Filter bypass monitoring
  • Contamination sensor integration
  • Pressure drop monitoring systems

Contamination Protection Benefits

  • Up to 75% reduction in system particle contamination
  • Effective water removal preventing corrosion and cavitation
  • Extended oil life through continuous cleaning
  • Early warning of system issues through monitoring
  • Reduced wear on expensive components
  • Decreased frequency of fluid changes
  • Lower environmental impact through reduced waste

Critical Applications

  • Steering systems
  • Propulsion controls
  • High-pressure systems
  • Precision control systems
  • High-duty cycle equipment
  • Older systems with wear particle generation

Request Filtration System Assessment

Additional Services

Hydraulic Hose Fabrication

Our mobile and workshop-based hose fabrication service provides custom hydraulic hoses with:

  • Marine-grade hose materials suitable for harsh environments
  • Stainless steel fittings for corrosion resistance
  • Pressure ratings up to 450 bar
  • Custom lengths and configurations
  • Rapid service for urgent requirements during business hours
  • Proper crimping with certified equipment
  • Pressure testing of all assemblies

Contact

System Troubleshooting

Our diagnostic experts utilize advanced equipment to pinpoint hydraulic system issues:

  • Pressure and flow testing
  • Electronic control system verification
  • Thermal imaging to identify restrictions
  • Vibration analysis
  • Hydraulic circuit analysis
  • Component isolation testing
  • Root cause determination

Contact

Consultation Services

Our engineering team provides expert consultation for:

  • System design review
  • Efficiency optimization
  • Reliability improvement
  • Maintenance procedure development
  • Crew training programs
  • Regulatory compliance assessment
  • Equipment selection guidance

Contact

Need Expert Guidance On Your Hydraulic Challenges?

Our technical team is available to provide personalized recommendations based on your specific vessel and operational requirements. Whether you’re dealing with a recurring issue, planning an upgrade, or seeking to improve reliability, we’re here to help during our business hours.

Contact Our Technical Specialists